CN2598690Y

CN2598690Y - Self-locking safety fast changeable joint

Info

Publication number: CN2598690Y
Application number: CNU032364709U
Authority: CN
Inventors: 斌徐; 徐斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-01-22
Filing date: 2003-01-22
Publication date: 2004-01-14
Anticipated expiration: 2013-01-22

Abstract

A self-locking safety fast changeable joint comprises a core bar which is ringed by different bars with the same center, an outer cover and a locking structure between the core bar and the outer cover; an inner hole channel in which a workpiece can be inserted in is arranged at the head of the core bar; a contract diameter segment is arranged at the inner end of the inner hole channel of the core bar; a thimble spring and a thimble are axially inserted in the contract diameter segment; the rear of the thimble is radially limited by a limiting sleeve; at least one pressing-support groove is arranged on the inner wall of the core bar corresponding to the thimble part; thimble steel balls are provided in the groove; at least one element-support groove is arranged on the inner wall of the middle part of the core bar; element-support steel balls are arranged in the groove; element-support steel ball loosening grooves and thimble steel ball loosening grooves are respectively arranged on the inner walls of the head and the rear of the cover corresponding to thimble steel balls and element-support steel balls; a return spring is arranged between the core bar and the cover, the axial position of the return spring is limited by the spring fixing ring fixed on the core bar. The fast changeable joint can effectively avoid relative rotation, loosening, and falling produced in the tool fast changing process; the utility model is of quick, convenient, stable and firm assembly and disassembly.

Description

Self locking safety type Fast transforms joint

Technical field

The utility model relates to connector supporting between a kind of cutlery and the electric tool, particularly a kind of hydraulic quick coupler.

Background technology

Existing hydraulic quick coupler, by thread lock, the head of plug has inner duct between plug and the shell.When cutlery inserts the clamping device of its inside center, loosening easily, cutlery tightly can not be fixed.When taking out cutlery, must two hand-tight close fits, pin on the other hand the hydraulic quick coupler shell downwards by, another hand takes out cutlery, very trouble.

Technology contents

The purpose of this utility model will solve the problem that prior art is installed built on the sand, mounting or dismounting are difficult, and the Fast transforms joint of a kind of clamping firm stable and easy accessibility is provided.

The technical scheme of the utility model self locking safety type Fast transforms joint: by the plug of concentric socket, shell and latch-up structure are between the two formed, the head of plug has the inner duct that can insert workpiece, it is characterized in that: the inner end of plug inner duct has a undergauge section, portion axially inserts thimble spring and thimble successively within it, the thimble afterbody is radially limited by stop collar, on the internal wall of plug, open at least one and hold out against groove with respect to the thimble position, the thimble hoodle is arranged in the groove, on the internal wall in plug stage casing, open at least one pushing part groove, groove is built-in with the head part hoodle, on the inwall of case head and afterbody with respect to the head part hoodle with the thimble hoodle has the head part hoodle to loosen groove respectively and the thimble hoodle loosens groove, have one to recover spring between plug and shell, this recovery spring axial position is limited by the spring retainer plate that is fixed on the plug.

Above-mentioned case head has the damping hoodle by the duct outer end inner wall and loosens groove, and plug is opened damping slot in corresponding position, and groove is built-in with the damping hoodle.

The cell wall that above-mentioned each hoodle loosens groove is domatic slowly.

There is big outer little inclined-plane in above-mentioned thimble stage casing.

Be that split is pegged graft between above-mentioned case head and the afterbody.

Above-mentioned enclosure hoop has anti-skidding rubber or other synthetic plastic, plastic wrapper.

The plug afterbody has annular groove for just polygonal or just polygon circular arc bone knob on its handle.

Beneficial effect: 1) the inner distinctive latch-up structure of hydraulic quick coupler can effectively stop cutlery in hydraulic quick coupler, relatively rotate, loosening in addition come off beyond, loading and unloading are also especially simply saved trouble.Can disposablely tightly cutlery be automatically locked when 1/4 cutlery is packed hydraulic quick coupler into, as the Fast transforms joint is pressed to next, auxiliary cutlery can eject in locking device, only needs one to take and can take out gently.For the little cutlery of general use, one-handed performance can be finished whole loading and unloading, and is promptly fast convenient and practical again.

2) the hydraulic quick coupler housing department has anti-skidding rubber or other synthetic plastic, plastic wrapper.In operating process, has anti-skidding effect.

3) afterbody of hydraulic quick coupler can insert the electric tool chuck with supporting use with whole hydraulic quick coupler easily for just polygonal or just polygon circular arc bone knob.When the annular groove on its bone knob passed through the collet segment clamping device, it is loosening that hydraulic quick coupler is difficult in the middle of work, firm stable, and easy to loading and unloading.Applicable to being connected fast, locking between electric tool and all kinds of cutleries.

The course of work:

1), workpiece is pressed into locking

Put into workpiece to plug 8, depress thimble 6, thimble hoodle 3 holds out against, and recovers spring 4 promotion plugs 8 and moves backward, and case head 7 relative plugs 8 press head part hoodle 2 forward and enter in the head part ball race, pin workpiece.

2), decontrol workpiece

Press case head 7 backward, thimble hoodle 3 loosens forward, and thimble spring 5 ejects thimble 6, and head part hoodle 2 loosens simultaneously, and workpiece ejects plug 8 under the ejecting of thimble 6, and damping hoodle 1 plays the increase resistance, does not allow workpiece eject outside effect.

Description of drawings

Fig. 1 is a contour structures schematic diagram of the present utility model;

Fig. 2 is that the A of Fig. 1 is to schematic diagram;

Fig. 3 is an internal structure schematic diagram of the present utility model;

Fig. 4 is the structural representation of plug;

Fig. 5 is a case head planform schematic diagram;

Fig. 6 is a shell tail structure shape schematic diagram.

1-damping hoodle, 2-head part hoodle, 3-thimble hoodle, 4-recover spring, 5-thimble spring, 6-thimble, 7-case head, 8-plug, 9-shell afterbody, 10-spring retainer plate, 11-stop collar, 12-annular groove, 13-bone knob, the anti-skidding rubber of 14-, 15-thimble hoodle to be loosened groove, 16-head part hoodle and loosens that groove, 17-damping hoodle loosen groove, 18-holds out against groove, 19-pushing part groove, 20-damping slot, 21-inner duct.

The specific embodiment

Embodiment is shown in Fig. 1,2,3,4,5,6: self locking safety type Fast transforms joint is made up of plug, shell and the latch-up structure between the two of concentric socket, the head of plug 8 has the inner duct 21 that can insert workpiece, the inner end of its plug inner duct has a undergauge section, portion axially inserts thimble spring 5 and thimble 6 successively within it, the thimble afterbody is radially limited by stop collar 11, and there is big outer little inclined-plane in the thimble stage casing.On the cell walls of plug, open at least one and hold out against groove 18 with respect to the thimble position, thimble hoodle 3 is arranged in the groove, on the cell walls in plug stage casing, open at least one pushing part groove 19, groove is built-in with head part hoodle 2, on the inwall of case head 7, there is the head part hoodle to loosen groove 16 with respect to the head part hoodle, on the inwall of shell afterbody 9, there is the thimble hoodle to loosen groove 15 with respect to the thimble hoodle, case head 7 inner duct outer end inner walls have the damping hoodle and loosen groove 17, plug is opened damping slot 20 at relative position, and groove is built-in with damping hoodle 1.The cell wall that each hoodle loosens groove is domatic slowly.Be that split is pegged graft between case head 7 and the afterbody 9.Have one to recover spring 4 between plug and shell, this recovers spring shaft to being limited by spring retainer plate 10.

Self locking safety type Fast transforms joint is processed by metal material series.Length overall: 55mm-65mm, the shell total length is: 30mm-35mm, the head conic section divides length: 9mm-13mm, mid portion: 15mm-20mm.The length that the locking spring of housing parts by inside pulls to behind the plug is: 1.5mm-3mm.The plug afterbody is just polygonal or just polygon circular arc bone knob 13, annular groove 12 is arranged on its handle, the cross section of annular groove is circular, the longitudinal section is an arc, curved inner radius is φ 5mm to φ 9.5mm, the arc radius scope is R=3.5mm to R=7.5mm, and the polygon opposite side distance is from being of a size of 9.52mm, promptly 3/8 inch.

Claims

1, a kind of self locking safety type Fast transforms joint, plug by concentric socket, shell and latch-up structure are between the two formed, the head of plug has the inner duct that can insert workpiece, it is characterized in that: the inner end of plug inner duct has a undergauge section, portion axially inserts thimble spring and thimble successively within it, the thimble afterbody is radially limited by stop collar, on the internal wall of plug, open at least one and hold out against groove with respect to the thimble position, the thimble hoodle is arranged in the groove, on the internal wall in plug stage casing, open at least one pushing part groove, groove is built-in with the head part hoodle, on the inwall of case head and afterbody with respect to the head part hoodle with the thimble hoodle has the head part hoodle to loosen groove respectively and the thimble hoodle loosens groove, have one to recover spring between plug and shell, this recovery spring axial position is limited by the spring retainer plate that is fixed on the plug.

2, self locking safety type Fast transforms joint according to claim 1 is characterized in that: described case head has the damping hoodle by the duct outer end inner wall and loosens groove, and plug is opened damping slot in corresponding position, and groove is built-in with the damping hoodle.

3, self locking safety type Fast transforms joint according to claim 1 and 2, it is characterized in that: the cell wall that described each hoodle loosens groove is domatic slowly.

4, self locking safety type Fast transforms joint according to claim 1 and 2 is characterized in that: there is big outer little inclined-plane in described thimble stage casing.

5, self locking safety type Fast transforms joint according to claim 1 and 2 is characterized in that: be that split is pegged graft between described case head and the afterbody.

6, self locking safety type Fast transforms joint according to claim 5 is characterized in that: described enclosure hoop has anti-skidding rubber or other synthetic plastic, plastic wrapper.

7, self locking safety type Fast transforms joint according to claim 1 and 2, it is characterized in that: described plug afterbody has annular groove for just polygonal or just polygon circular arc bone knob on its handle.